Yu Yifeng is not a pure astronomer, nor a physicist. During his long career in power, he has been involved in all aspects, and what he has learned is miscellaneous.
However, his knowledge is very broad, which is also a big advantage.
He thought carefully: "If you want to discover the Big Bang, you must at least have the red shift of stars, or microwave background radiation. Or other things that I haven't thought of yet..."
"But now that the universe is dark, all this information seems to have been lost. What should we do?"
After thinking about it, he was a little troubled, and there seemed to be no good solution.
He could only lament that his knowledge was not enough. If an astronomer were asked to do this question, it might be easier.
But he doesn't want to quit directly. If you sell an experience ticket, you can get 1 point, which is more than one hundred tons of antimatter. He doesn't want to waste it and become such a prodigal.
"...This question is not purely scientific, but more sociological." Yu Yifeng had a flash of inspiration and grasped the key point.
"The question requires me to create a civilization, and then let this civilization discover it, instead of letting me explore here by myself... If the level of this civilization is high enough, there are enough talents, and the wisdom is greater than mine, it should be... okay?"
"Try it!"
While thinking about it, a nebula 10 light-years in size suddenly appeared in the starry sky. They were the only matter that Yu Yifeng could come into contact with in this dark universe.
"In the era of heat death, matter is really precious." He sighed secretly.
This nebula is like a group of stagnant water, not large enough, and is in a state of gravitational balance. If there is no interference, it will continue to be like this until all protons decay.
"Do you have to create everything yourself? Starting from a nebula... this game is quite realistic."
Yu Yifeng's heart moved and he felt like he had become "God".
Everything must be born in this darkness.
"Anyway, we have to create an intelligent race first before we can talk about the next thing. Without an intelligent race, how can we discover anything?"
"God said, let there be light!" He recalled certain contents in the Bible, and smiled in his heart as he silently recited it, feeling that it made sense.
"To create an intelligent race, you must first have a star!"
With a wave of his hand, he began to push the nebula, breaking the gravitational balance.
Sure enough, this huge nebula, measured in light years, was pushed by him!
"...I really feel like I am God." Yu Yifeng was surprised. He didn't know how this feeling came about, but it turned out to be completely real.
"Is the technology of the brain in the vat so advanced? Can it directly stimulate my senses?"
Soon, this nebula began to change under the impetus of Yi Feng. Due to the conservation of angular momentum and the mutual attraction of gravity, the rotation of the collapsed nebula quickly accelerated. The atoms in it collided with each other more frequently, increasing the kinetic energy.
Converted into heat energy.
Yu Yifeng's body is invisible, but very powerful. He feels like playing with a top, whipping a ball of cotton, which is simply "powerful works miracles".
"Pushing the nebula is effortless. This is...God mode!"
He pushed faster and faster, and the nebula became hotter and hotter. Under the influence of gravity, gas pressure, magnetic field and rotational inertia, in millions of years, a dense protostar gradually formed in the center!
"It's really amazing..." Yu Yifeng sweated and suddenly felt the physical exertion.
And in this process, a lot of astronomical knowledge needs to be used.
Stars of different masses will have different luminous intensities and lifespans in the future. He does not want to create a huge and short-lived blue star, nor does he want to create a useless red dwarf star.
The main target is still a yellow dwarf star that is exactly the same as the sun.
"It seems that this 'God' also has limitations. There is no way to modify the specific physical rules. It is not truly arbitrary. It still has to be based on the laws of nature..." Yu Yifeng has already discovered this setting.
The thermonuclear fusion in the center of the protostar has not yet formed, and it is still not a true main sequence star.
"So you have to light a fire. The way to light the fire is of course to increase the mass."
His eyes can read the mass of the protostar and try to control it so that it is close to the mass of the sun.
The nebula continued to accrete material. As the material increased, the internal pressure increased. Suddenly, the protostar emitted light and was ignited!
In this dark universe, a dim light point appeared, the only light point!
"It's really not easy." Deep in Yu Yifeng's heart, there was a slight sense of accomplishment. This light point turned out to be the only light point in the observable universe. The era approaching heat death is really terrible.
"Under such circumstances, who would have thought that trillions of years ago, under the deep sky, there were stars gathering and countless civilizations? It seems that our universe is actually pretty good."
The warm light seemed to illuminate his entire heart, filling him with energy.
Of course there is a reason for him to do this. After all, light-type life is the mainstream in the universe, and it is what he is most familiar with. He does not understand other messy life at all, nor does he know how to create it.
If you want to create intelligent life, you must first have a sun. This is a natural idea for Yi Feng.
Of course it's not enough to fabricate stars, you also have to have planets.
Of course, he started copying the previous solar system again.
The inner solar system is about a distance within 4 astronomical units. Because it is too hot, it is difficult for small molecules such as water and methane to gather in this area. Therefore, terrestrial planet embryos are formed from high-melting point, high-mass materials, such as iron and nickel.
Silicates etc.
Within 100,000 years after the formation of the sun, they grew to 0.05 Earth mass, no longer had enough raw materials, and began to stop gathering.
Beyond 4 astronomical units, the material between the orbits of Mars and Jupiter has lower temperatures and ice-like compounds remain solid.
Therefore, the planet here has a lot of ice and methane.
The young Sun had a stable and strong new wind. Uranus and Neptune were formed after Jupiter and Saturn, after the solar wind blew away most of the disk material.
As a result... the hydrogen and helium accumulated on these two planets are relatively small, each no more than one times the mass of the Earth.
Well, Yu Yifeng discovered that his god is indeed not very powerful. Apart from being extremely powerful, he can only use his power according to the rules of nature. For example, it is possible to speed up time, create certain accidents, etc.
But he has no way to suddenly change the gravity of a certain area, nor can he significantly change the formation of stars.
If he wanted to use his strength to create a miracle, or if he wanted a Jupiter to forcefully appear in the position of Venus, the consumption of "physical energy" would accelerate rapidly, making it...impossible for him to complete these tasks.
"...Natural rules and the setting of physical strength are the main constraints. However, physical strength will recover with the passage of time...Don't worry too much." Yu Yifeng thought to himself.
After all the planetary structures were completed, he finally breathed a long sigh of relief. He was tired, so tired.
Because of his forced interference, eight planets actually appeared!